Your browser doesn't support javascript.
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 2.073
Filtrar
1.
Water Sci Technol ; 80(5): 855-863, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31746792

RESUMO

This paper presents a method and mock-up design for evaluating the heat-island mitigation effect of porous/water-retentive blocks in a climatic environmental chamber using ambient temperature measurements. To create the proposed method, the heat circulation mechanism of blocks was considered. From this, we specified the climatic chamber design requirements, determined the required components and equipment for the mock-up, and developed the proposed method for evaluating heat-island mitigation performance based on ambient temperature. Using the proposed mock-up design and method, we confirmed that both surface and air temperatures were lower when porous/water-retentive blocks were installed compared to conventional blocks. This method can be used to analyze the difference between surface and ambient temperatures under various conditions to quantify the heat-island mitigation performance of different materials according to ambient temperature.


Assuntos
Temperatura Alta , Ilhas , Porosidade , Temperatura Ambiente
2.
Zootaxa ; 4636(1): zootaxa.4636.1.1, 2019 Jul 12.
Artigo em Inglês | MEDLINE | ID: mdl-31712491

RESUMO

The Socotra Archipelago, located in the eastern Gulf of Aden, has a unique marine environment which combines tropical and 'pseudo-temperate' elements. Studies on the fish biogeography of the archipelago, partially framed in regional studies, have substantially outpaced critical elementary research on the archipelago's fish diversity. The present study seeks to close this gap and identifies the Socotra Archipelago as a major hotspot of coastal fish diversity in the Indian Ocean.       The archipelago supports unique coastal fish assemblages which are predominantly composed of coral-associated ("reef") species, in spite of the limited biogenic reef frameworks. A Preliminary Checklist comprises 682 species with confirmed records and a "Working List" includes an additional 51 records, totalling 733 faunal records in 108 families. The family Labridae is the most speciose, followed by Gobiidae, Pomacentridae, Serranidae and Chaetodontidae. The species richness of the archipelago is the highest when compared to adjacent Arabian ecoregions. The richness of the Acanthuridae, Chaetodontidae, Labridae, Pomacentridae and Pseudochromidae stand out as particularily high, and the richness of several families is as high as or higher than in the entire Red Sea. The total archipelagic richness is extrapolated at up to 875 species based on incidence-based richness models and expert opinion. Inshore fish inventories, covering 497 species, found between 14 and 132 species per site (x̄ = 66). Site diversity decreased across the archipelago from west to east and from north to south. Total fish diversity was highest around Socotra Island, followed by Abd al-Kuri Kal Farun and Darsa Samha. Occurrence frequencies were very unevenly distributed and dominated by Pomacentrus caeruleus and Thalassoma lunare, whilst many species were infrequent. The fish assemblages are dominated by species from the Indo-West Pacific and the north-western Indian Ocean. The assemblages are rich in rare species and hybrids, and include a low number of endemics (4-5), and a high number of species with far-reaching and Western Indian Ocean ranges.


Assuntos
Biodiversidade , Peixes , Animais , Oceano Índico , Ilhas , Iêmen
3.
Zootaxa ; 4629(2): zootaxa.4629.2.2, 2019 Jul 05.
Artigo em Inglês | MEDLINE | ID: mdl-31712519

RESUMO

The pselaphine genus Sathytes Westwood is represented in Borneo by a single species. In this paper we describe four new species: S. borneoensis sp. nov., S. liuyei sp. nov., S. larifuga sp. nov., and S. shihongliangi sp. nov. All new species were collected by light traps in Sabah, and show unique combinations of male sexual characters that lead to ready species discriminations. A key to Sathytes species from Borneo is appended.


Assuntos
Aracnídeos , Besouros , Distribuição Animal , Animais , Bornéu , Ilhas , Malásia , Masculino
4.
Zootaxa ; 4626(1): zootaxa.4626.1.1, 2019 Jul 03.
Artigo em Inglês | MEDLINE | ID: mdl-31712544

RESUMO

Five species in five genera of extinct endemic rails have been described from the Mascarene Islands of Mauritius, Réunion and Rodrigues: the Mauritian Red Rail or Poule Rouge Aphanapteryx bonasia; Mascarene Coot or Poule d'eau Fulica newtonii; which occurred on Mauritius and Réunion; Réunion Wood Rail Dryolimnas augusti; Réunion Gallinule or Oiseaux bleu 'Porphyrio caerulescens'; and Rodrigues or Leguat's Rail Erythromachus leguati. All are known from fossil remains and/or from contemporary accounts and illustrations. A sixth species of rail Dryolimnas sp. nov. is described herein from fossils from Mauritius, but was not unequivocally previously reported in the contemporary literature. This paper provides an analysis of the Rallidae of the Mascarene Islands based on existing and newly discovered fossil remains, and details historical reports and accounts. Comprehensive osteological descriptions and synonymies are also included. Their ecology and extinction chronologies are interpreted from historical ev-idence. The relationships of Aphanapteryx and Erythromachus are unresolved, having clearly been isolated for a considerable time; the middle Miocene is the earliest their ancestors could have arrived on the Mascarenes, but this may have happened more recently. Mascarene derivatives of Fulica, Porphyrio and Dryolimnas are of much more recent origin, and appear to have originated in Africa or Madagascar. All terrestrial rails on Mauritius, Réunion and Rodrigues, were probable victims of cat predation following their historic introduction to the islands, whereas over-hunting by humans was probably the primary cause of extinction of 'Porphyrio caerulescens' on Réunion. The only extant rail on the Mascarenes today, the Madagascar race of Eurasian Moorhen Gallinula chloropus pyrrhorrhoa, is a recent arrival, having colonised Mauritius and Réunion after the extinction of Fulica newtonii.


Assuntos
Aves , África , Animais , Gatos , Ilhas , Madagáscar , Maurício , Comportamento Predatório , Reunião
5.
Zootaxa ; 4576(3): zootaxa.4576.3.4, 2019 Apr 03.
Artigo em Inglês | MEDLINE | ID: mdl-31715749

RESUMO

Only a single known specimen of Cnemaspis timoriensis (Duméril Bibron, 1836) exists, the holotype in the Muséum National d'Histoire Naturelle in Paris, France. Purportedly collected by Charles Gaudichaud-Beaupré in the year 1818 on Timor Island in the Lesser Sunda Archipelago during the circumnavigation of the globe by the vessel L'Uranie, intensive research on Timor has failed to produce additional specimens or any similarly appointed gecko. Using a series of detailed morphological comparisons, we provide irrefutable evidence that the animal in question is not a member of Cnemaspis but of the neotropical genus Gonatodes. Furthermore, we ascertained that C. timoriensis is conspecific with G. humeralis, a widely distributed South American species. We also show that a specimen labeled with the timoriensis name in the Museum für Naturkunde, Berlin, Germany is not conspecific and not part of a type series. While the taxon name timoriensis has nomenclatural priority over the two-decades-younger name humeralis, usage would dictate that to preserve the nomenclatural stability of neotropical geckos the junior synonym should be retained. An application to the International Commission on Zoological Nomenclature to this effect is in preparation.


Assuntos
Lagartos , Animais , Austrália , Berlim , França , Alemanha , Indonésia , Ilhas , Paris
6.
Zootaxa ; 4576(3): zootaxa.4576.3.10, 2019 Apr 03.
Artigo em Inglês | MEDLINE | ID: mdl-31715755

RESUMO

The leafhopper subfamily Idiocerinae from Hainan Island (China) is reviewed. Eight genera and 10 species are recognized including one new genus and one new species, Longistyla gen. nov. and Longistyla viraktamathi sp. nov., based on specimens from Jianfengling Nature Reserve. A checklist and keys to genera and species are included.


Assuntos
Hemípteros , Animais , China , Ilhas
7.
Zootaxa ; 4683(4): zootaxa.4683.4.5, 2019 Oct 10.
Artigo em Inglês | MEDLINE | ID: mdl-31715911

RESUMO

We describe a new species of Stenasellus Dollfus, 1897 (Isopoda: Asellota: Stenasellidae) from stagnant freshwater habitats in a cave on Socotra Island, Yemen. S. taitii n. sp. is the first endemic stenasellid found in Socotra, showing relatively closer morphological affinities to species from the Middle East (Oman, Iran) than from the African mainland, corresponding to the known paleogeographical connection of the archipelago to Southern Arabia. With notes on the protection of Socotran groundwaters.


Assuntos
Isópodes , Animais , Arábia , Irã (Geográfico) , Ilhas , Oriente Médio , Omã , Iêmen
8.
Zootaxa ; 4598(1): zootaxa.4598.1.1, 2019 May 06.
Artigo em Inglês | MEDLINE | ID: mdl-31716064

RESUMO

Mecodema (Coleoptera: Carabidae: Broscini) is a hyperdiverse endemic New Zealand genus of ground beetles with only a few geographically widespread species found throughout the two main islands, as well as many offshore islands. Using specimens from a number of private and institutional collections, in addition new specimens were acquired by extensive pitfall trapping, we describe or redescribe all of the known North Island Mecodema species. Additionally, we redescribe three South Island species from the former genus Metaglymma, as morphological evidence shows that these species are nested within Mecodema. Species descriptions are formed by using 128 morphological characters, which include external characters, as well as both male and female internal structures. There are four new combinations: Mecodema antarctica comb. n., M. aberrans comb. n., M. moniliferum comb. n. and M. tibiale comb. n. We synonymise M. occiputale under Mecodema curvidens, and M. sulcatum under Mecodema oblongum, and reinstate M. scitulum Broun (northwest Hunua Range, Auckland). Twenty four new species are described: Mecodema argentum sp. n., M. atuanui sp. n., M. dunnorum sp. n., M. genesispotini sp. n., M. godzilla sp. n., M. jacinda sp. n., M. kipjac sp. n., M. kokoroiho sp. n., M. mohi sp. n., M. ngaiatonga sp. n., M. ngaitahuhu sp. n., M. papake sp. n., M. perexiguus sp. n., M. rusticulus sp. n., M. temata sp. n., M. teparawhau sp. n., M. teroroa sp. n., M. tewhara sp. n., M. tuhoe sp. n., M. undecimus sp. n., M. wharekahika sp. n., M. xylanthrax sp. n., M. yconomus sp. n., M. zonula sp. n. North Island regional species endemism is very high in Northland (15/16 endemic species), with species becoming more widespread in the southern regions, e.g. Wellington only has two endemic species from a total of eight species. This research increases the total number of described Mecodema species to 102, and will allow a modern taxonomic framework for completion of the revision of the South Island species.


Assuntos
Besouros , Animais , Regiões Antárticas , Feminino , Ilhas , Masculino , Nova Zelândia
9.
Zootaxa ; 4590(4): zootaxa.4590.4.1, 2019 Apr 30.
Artigo em Inglês | MEDLINE | ID: mdl-31716079

RESUMO

On the Hawaiian Islands 22 sciarid species were detected, belonging to the following ten genera: Austrosciara Schmitz Mjöberg, Bradysia Winnertz, Corynoptera Winnertz, Cratyna Winnertz, Epidapus Haliday, Hyperlasion Schmitz, Lycoriella Frey, Phytosciara Frey, Pseudolycoriella Menzel Mohrig and Scatopsciara Edwards. The revision resulted in new combinations for the following five species: Austrosciara hawaiiensis (Hardy) comb. n., Corynoptera prominens (Hardy) comb. n., Cratyna adrostylata (Hardy) comb. n., Cr. longicosta (Hardy) comb. n., and Scatopsciara hoyti (Hardy) comb. n. Eight species were declared as new synonyms: Bradysia bishopi Steffan, 1973 = B. centidens Vilkamaa, Hippa Mohrig, 2012 syn. n.; B. crassicornis (Skuse, 1890) = B. molokaiensis (Grimshaw, 1901) syn. n. and = B. aspercera Mohrig, 2016 syn. n.; B. radicum (Brunetti, 1912) = B. spatitergum (Hardy, 1956) syn. n.; Corynoptera prominens (Hardy, 1956) = C. gladiota Mohrig, 2004 syn. n.; Cosmosciara hartii (Johannsen, 1912) = Plastosciara (Plastosciara) latipons Hardy, 1956 syn. n.; Hyperlasion wasmanni (Schmitz, 1918) = Scythropochroa magnisensoria Hardy, 1956 syn. n.; and Scatopsciara hoyti (Hardy, 1956) = Sc. spiculata Vilkamaa, Hippa Mohrig, 2012 syn. n. These four species are new reports for Hawai'i, three of them are new to science: Epidapus pallidus (Séguy), Pseudolycoriella nigrofemoralis Mohrig, Kauschke Broadley sp. n., Scatopsciara hardyi Mohrig, Kauschke Broadley sp. n. and Sc. steffani Mohrig, Kauschke Broadley sp. n. A lectotype was designated for Bradysia radicum (Brunetti) in order to fix the name. All new and revised species are figured.        The species Bradysia bishopi Steffan, 1973, B. ocellaris (Comstock, 1882), B. radicum (Brunetti, 1912), Cosmosciara hartii (Johannsen, 1912), Pseudolycoriella planiforceps (Steffan, 1971) and Scatopsciara steffani Mohrig, Kauschke Broadley sp. n. are reported from the Galápagos Islands.


Assuntos
Ceratopogonidae , Dípteros , Animais , Equador , Fungos , Hawaii , Ilhas
10.
Zootaxa ; 4614(2): zootaxa.4614.2.3, 2019 Jun 10.
Artigo em Inglês | MEDLINE | ID: mdl-31716379

RESUMO

Petta Malmgren, 1866 is a small and poorly known genus of the annelid family Pectinariidae Quatrefages, 1866. Prior to this study, the genus comprised four species P. pusilla Malmgren, 1866 (type locality Gullmarsfjord, west coast of Sweden), P. assimilis McIntosh, 1885 (type locality between Prince Edward and Kerguelen Island, southern Indian Ocean), P. pellucida (Ehlers, 1887) (type locality Santarem Channel between Cay Sal Bank and Bahamas, Caribbean Sea) and P. tenuis Caullery, 1944 (type locality Sulu, Philippines, tropical Pacific Ocean), the two last ones were known only from the original description. We revised the genus by re-examining the types and providing updated illustrated re-descriptions of its species, except for P. assimilis of which the type material has been lost. Commonly used morphological characters of the genus are expanded to also include new ones such as the presence of pair of lateral ear-shaped lobes adjacent to dorsal base of cephalic veil, pair of ventral lappets on segment 1, pair of dorso-lateral pads on segment 5, large basal hump on branchiae, and a rounded anterior peg with a blunt tip and a longitudinal row of two major teeth on uncini. The type species P. pusilla is recognised as having four lappets on the anterior margins of cephalic veil and a large lower lip posterior to buccal cavity. Two species P. investigatoris n. sp. and P. williamsonae n. sp. are described from deep water off the coast of southeastern Australia and represent the first records of this genus in Australian waters. A phylogenetic position of one new species was assessed in the framework of a phylogeny based on a fragment of the mitochondrial cytochrome oxidase I gene (mtCOI). An updated taxonomic key to Pectinariidae genera and all species of Petta is given.


Assuntos
Anelídeos , Distribuição Animal , Animais , Austrália , Bahamas , Região do Caribe , Oceano Índico , Ilhas , Oceano Pacífico , Filipinas , Filogenia , Suécia , Índias Ocidentais
11.
Zootaxa ; 4614(2): zootaxa.4614.2.4, 2019 Jun 10.
Artigo em Inglês | MEDLINE | ID: mdl-31716380

RESUMO

The island of Borneo lies within one of the most biodiverse regions in the world. Despite this, its documented gekkonid diversity is not commensurate with other areas of Southeast Asia. The megadiverse genus Cyrtodactylus is especially underrepresented. Limestone-karst ecosystems, in particular, harbor many endemic Cyrtodactylus species, but only one karst-dwelling species is currently recognized from Borneo. This paper adds two additional karst-dwelling Cyrtodactylus species-C. muluensis sp. nov. and C. limajalur sp. nov.-from Sarawak, Malaysia. Cyrtodactylus muluensis sp. nov. is endemic to Gunung Mulu and is distinguished from its congeners by having a precloacal groove, 31-38 ventral scales, a maximum SVL of at least 88 mm, enlarged subcaudals, 19-20 subdigital lamellae, and a banded dorsal body pattern. Cyrtodactylus limajalur sp. nov. is endemic to the Serian region and is distinguished from its congeners by having 33-42 ventral scales, enlarged subcaudals, a precloacal pit, a maximum SVL of at least 94 mm, 5-6 enlarged femoral scales, 19-22 subdigital lamellae, and five distinct bands on the dorsum. Both species are phylogenetically distinct and deeply divergent from all other congeners. The description of two new karst-dwelling species highlights the need to conserve karst habitats and the endemic species they harbor.


Assuntos
Ecossistema , Lagartos , Distribuição Animal , Estruturas Animais , Animais , Bornéu , Ilhas , Malásia , Filogenia
12.
Zootaxa ; 4560(2): zootaxa.4560.2.9, 2019 Feb 25.
Artigo em Inglês | MEDLINE | ID: mdl-31716586

RESUMO

Thirty-three species of Chalcidoidea (Hymenoptera) are newly recorded from the Maltese Islands, of which, 19 include host data. An updated checklist for the 181 chalcidoid species recorded from Malta is also included, which belong to 17 families as follows: Agaonidae (3), Aphelinidae (21, 1 as new record), Azotidae (1), Chalcididae (8 species, 5 as new records), Encyrtidae (24, 1 as new record), Eulophidae (51, 16 are new records), Eupelmidae (9, 2 as new records), Eurytomidae (6, 1 as new record), Leucospidae (4), Megastigmidae (1), Mymaridae (2), Ormyridae (1), Perilampidae (1 new record), Pteromalidae (39, 5 as new records), Signiphoridae (2), Tetracampidae (1) and Torymidae (7, 1 as new record).


Assuntos
Himenópteros , Animais , Ilhas , Malta
13.
Zootaxa ; 4668(3): zootaxa.4668.3.2, 2019 Sep 11.
Artigo em Inglês | MEDLINE | ID: mdl-31716616

RESUMO

The Java Sea region has a high diversity of marine organisms of interest to scientists and tourists alike. Neglected among this diversity are intertidal bryozoans, relatively few of which have been reported from this area. Here we describe six species, one of which is new to science. These were collected from three shallow-water localities-Karimunjawa Marine National Park, Awur Bay and Panjang Island-in the south-central part of the sea. The five known species belong to the families Candidae, Poricellariidae, Onychocellidae, Lepraliellidae, and Phidoloporidae. The new species, Pleurocodonellina jeparaensis n. sp. (Smittinidae), is found at Awur Bay, attached to a bivalve shell fragment. Biogeographically, the suite of species is predominantly tropical Indo-West Pacific in distribution, representing a small fraction of the additional hundreds of species that are anticipated for the Java Sea region.


Assuntos
Bivalves , Briozoários , Animais , Indonésia , Ilhas , Água
14.
Zootaxa ; 4610(1): zootaxa.4610.1.1, 2019 May 27.
Artigo em Inglês | MEDLINE | ID: mdl-31717090

RESUMO

An initial contribution to the revision of the genus Dziriblatta Chopard, 1936a, formerly synonymized erroneously with Lobolampra Houlbert, 1927, is presented. The species of the genus, hitherto placed in the subgenera Phyllodromica, Arbiblatta Chopard, 1936a and Lobolampra Houlbbert, 1927, of the genus Phyllodromica Fieber 1853, are distributed on the northern Macaronesian Islands, in southern Spain, North Africa, and the Near East (Israel, Cyprus). The genus is divided into nine new subgenera: Autumnoblatta subgen. nov., Blattantis subgen. nov., Discleroblatta subgen. nov., Dziriblatta subgen. nov., Macaroblatta subgen. nov., Monoscleroblatta subgen. nov., Pauciscleroblatta subgen. nov., Sculptoblatta subgen. nov., and Sulcoblatta subgen. nov.. The characteristics of the genus and its subgenera are described including also a determination key which allows the discrimination of the subgenera in both sexes. The presumable phylogenetic position of the genus and the relationships between the subgenera are discussed and shown in cladograms. The described species and their distribution are shown in numerous figures and distribution maps, respectively.Three new species are described: Dziriblatta (Sculptoblatta) prisca spec. nov., Dziriblatta (Autumnoblatta) nasuta spec. nov., and Dziriblatta (Macaroblatta) dendroglandulosa spec. nov. Nomenclatory changes: The species Blatta carpetana Bolívar, 1873, is designated as lectotype for the subgenus Lobolampra Houlbert, 1927. New synonyms: Aphlebia cazurroi Bolívar, 1885, is a junior synonym of Dziriblatta algerica (Bolívar, 1881); Dziriblatta theryi Chopard, 1936a, Hololampra finoti Bolívar, 1914, and Lobolampra adelungi Chopard, 1943, are synonyms of Dz. (Pauciscleroblatta) kroumiriensis (Adelung, 1914); Dz. vicina Chopard, 1936b, is a synonym of Dz. (Monoscleroblatta) merrakescha (Adelung, 1914).


Assuntos
Blattellidae , África do Norte , Distribuição Animal , Animais , Chipre , Feminino , Ilhas , Israel , Masculino , Oriente Médio , Filogenia , Espanha
15.
Zootaxa ; 4695(6): zootaxa.4695.6.3, 2019 Nov 13.
Artigo em Inglês | MEDLINE | ID: mdl-31719324

RESUMO

We describe a new species of Cyrtodactylus from Karkar Island, an active volcano off the northern coast of New Guinea. It is a member of the C. sermowaiensis species group, which is defined by the absence of enlarged precloacal and femoral scales and the absence of precloacal/femoral pores in males. This species group includes two other species, one of which is widespread along the northern mountain ranges of New Guinea, and the other of which is restricted to Manus Island. The new species differs from each of these in its larger size; more-tuberculate dorsum; wide, even bands across the dorsum; and uniformly brown crown of the head. Distributional data suggest that the C. sermowaiensis species group originated on the former islands of the South Caroline Arc, although only C. sermowaiensis currently occupies terranes derived from that arc. The other two species are now restricted to volcanic islands that originated independent of that arc, but the current restriction of our new species to Karkar Island seems likely to be a relictual distribution of a formerly wider range. The status of Karkar as an active volcano, and the explosive sterilization or virtual disappearance of other islands in the Bismarck Volcanic Arc, suggest that the new species could be at threat of immediate extinction should a similar explosive eruption occur on Karkar.


Assuntos
Ecossistema , Lagartos , Distribuição Animal , Estruturas Animais , Animais , Ilhas , Masculino , Nova Guiné , Papua Nova Guiné
16.
Zootaxa ; 4695(6): zootaxa.4695.6.7, 2019 Nov 13.
Artigo em Inglês | MEDLINE | ID: mdl-31719328

RESUMO

Takahashi (1942) described Dialeurotrachelus cambodiensis, the type species of the monotypic whitefly genus, Dialeurotrachelus Takahashi from three syntype specimens collected on an unidentified tree in Cambodia, which were subsequently lost or destroyed. It was rediscovered after eight decades in the Indian territories of the Andaman and Nicobar Islands. A neotype is designated for D. cambodiensis Takahashi, from specimens collected on Diospyros kurzii Hiern (Ebenaceae) from Andaman Island, India. It is recorded for the first time from the Indian territories, Andaman and Nicobar Islands. Pupal morphology is assessed for redefining the generic description with differential diagnoses from related genera, and anomalies involved with structure of the vasiform orifice and associated structures are discussed. Illustrations are provided of the puparia in life, camera lucida drawings, slide mounts, and scanning electron photomicrographs.


Assuntos
Hemípteros , Animais , Camboja , Índia , Ilhas , Pupa
17.
Zootaxa ; 4695(4): zootaxa.4695.4.4, 2019 Nov 11.
Artigo em Inglês | MEDLINE | ID: mdl-31719342

RESUMO

During a survey of deep-sea fauna, using a Remotely Operated Vehicle, a single specimen (21.6 mm in standard length) of Larsonella pumilus (Larson Hoese, 1980) was collected at a depth of 214 m off the coast of Okinawa Island, Japan. It represents the first record of this species from Japan. The collection site was far deeper than previous reports for this species. This suggests that the main habitat of L. pumilus is deeper than previously recognized and it may explain the paucity of records of this species. As the previously available morphological description of L. pumilus was based on only a single specimen (holotype), this new specimen is described herein. Its morphology corresponds closely to the original description of the holotype, except that faint melanophores are arranged radially around the eyes and scattered on the trunk and the fins. Mitochondrial genome sequences of L. pumilus and 19 related species demonstrate close relationships between L. pumilus and the genus Priolepis. These data also indicate that the genus Priolepis is not monophyletic.


Assuntos
Perciformes , Animais , Peixes , Ilhas , Japão , Filogenia
18.
Zootaxa ; 4694(1): zootaxa.4694.1.1, 2019 Nov 05.
Artigo em Inglês | MEDLINE | ID: mdl-31719372

RESUMO

Trindade and Martin Vaz (TMV) is a highly isolated, oceanic volcanic archipelago located some 1200 km off the Brazilian coast and about 4200 km away from the nearest African coast. For almost 100 years Calcinus tibicen (Herbst, 1791) was the only hermit crab species known from TMV. From 2012 to 2018, 263 daytime SCUBA diving and intertidal samplings conducted at TMV yielded 1075 paguroid specimens in 10 species, three of which are established herein as new species: Iridopagurus martinvaz sp. nov., Nematopagurus micheleae sp. nov., and Pagurus carmineus sp. nov. Iridopagurus margaritensis García-Gómez, 1983, and Phimochirus leurocarpus McLaughlin, 1981, both only known from the northern hemisphere, are recorded for the first time from the southwestern Atlantic. Opportunity was taken herein to include hitherto unreported or little known specimens from along the Vitória-Trindade Seamount Chain, namely, Dardanus venosus H. Milne Edwards, 1848, Nematopaguroides pusillus Forest de Saint Laurent, 1968, Pagurus provenzanoi Forest de Saint Laurent, 1968, and Phimochirus holthuisi (Provenzano, 1961). The lectotype of Pagurus venosus H. Milne Edwards, 1848 is designated as the neotype for the obscure Pagurus arrosor divergens Moreira, 1905, which thus becomes an objective junior synonym of the former. A list of all paguroid species known from the tropical southern-central Atlantic oceanic archipelagoes and islands (Ascension, Cape Verde, Fernando de Noronha, Gulf of Guinea, Rocas Atoll, Saint Helena, Trindade and Martin Vaz) with their gross distribution in the Atlantic Ocean is provided. Investigation on the existence of patterns of geographic distribution for the paguroid fauna of the tropical southern-central Atlantic oceanic islands showed that 70% percent of the paguroids from TMV are western Atlantic in origin and 30% endemic. No amphi-Atlantic paguroid species are known from TMV. Conversely, the affinity of Ascension's (33%) and Saint Helena's (50%) paguroids is with the eastern Atlantic; no western Atlantic paguroids have been reported from these two islands so far. Exploration on the existence of trends of correlation between islands area and species richness through the Spearman's coefficient of correlation showed that the patterns in the number of paguroid species cannot be explained by variation in island area alone (rs = 0.4728; p = 0.28571).


Assuntos
Anomuros , Animais , Ilhas Atlânticas , Oceano Atlântico , Brasil , Cabo Verde , Ilhas , Oceanos e Mares
19.
Zootaxa ; 4691(5): zootaxa.4691.5.2, 2019 Nov 04.
Artigo em Inglês | MEDLINE | ID: mdl-31719376

RESUMO

A new genus and species of catshark is described based on a single specimen collected off Ambon in the Maluku Islands of eastern Indonesia. Akheilos suwartanai belongs to the subfamily Schroederichthyinae which differs from the other catsharks in a combination of: similar sized dorsal fins, supraorbital crests present, pseudosiphon present on claspers, broad subocular ridges under eyes, posterior nasal flaps present, tips of rostral cartilage fused into a rostral node. It represents the first record of this subfamily outside of the Americas. Akheilos differs from the other genus in the subfamily, Schroederichthys in a combination of: clasper groove not fused dorsally, ventral lobe of caudal fin produced, more intestinal valve turns, anal fin slightly larger than second dorsal fin, and in colour pattern.


Assuntos
Elasmobrânquios , Animais , Cor , Indonésia , Ilhas
20.
Zootaxa ; 4688(4): zootaxa.4688.4.4, 2019 Oct 24.
Artigo em Inglês | MEDLINE | ID: mdl-31719427

RESUMO

The tarantula spider genus Aphonopelma Pocock, 1901 has received considerable attention in recent years but the group's diversity remains poorly understood in Mexico, particularly in the pine-oak woodlands of the Sierra Madre Occidental and associated Madrean "Sky Islands". A pair of tarantulas discovered from an unsampled region in the Sierra de Bacadéhuachi (the westernmost range of the Sierra Madre Occidental) in northeastern Sonora was found to be closely related to four species from the Madrean "Sky Islands" in Arizona and New Mexico. An integrative approach for delimiting species (incorporating data from molecular phylogenetics, morphology, distributions, and breeding periods) suggests that the specimens from Sierra de Bacadéhuachi belong to an undescribed species that is herein named Aphonopelma bacadehuachi sp. nov. This new species adds to our knowledge of an increasingly diverse assemblage of Aphonopelma from the Madrean Pine-Oak Woodlands Hotspot. Collaborations between Mexican and American researchers are needed to accelerate discovery and description of the group's remaining diversity, particularly in light of the many threats facing the ecoregion including habitat degradation and climate change.


Assuntos
Quercus , Aranhas , Animais , Arizona , Florestas , Ilhas , México , New Mexico
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA